Mason Miller ATH RP R 

Born: 08/24/1998 Age: 26

FanGraphs Player Page

2025 OPL OPL Player Page

Signed By

SLEEPERS for $12

On MLB 40-man: YES
Acquired: Drafted 3rd Rd (97) '21

Sat 5/03 Sun 5/04 Mon 5/05
@MIA 6-9 F @MIA 1:40 PM EDT SEA 10:05 PM EDT

Positions
RP
2026 Earned Positions
RP

All Leagues
Average $12.09 Median $12.00
Old School (5x5)
Average $13.62 Median $13.00

All Leagues
Average $18.40 Median $21.50
Old School (5x5)
Average $17.00 Median $19.00

Roster%
100%
Change
7Day 0%
30Day 0.31%

2025 OPL 2025 OPL Round 1
OPL Roster%
9.58%
OPL Average Salary
$10.04


May 1, 2025 9:14 PM : Miller struck out one batter in a scoreless ninth inning to earn the save against the Rangers on Thursday. He did not allow a hit or walk.
Analysis: Miller came in for the ninth inning to preserve the Athletics' 3-0 lead. He took down the first two batters in five pitches before striking out Marcus Semien to close out Thursday's game. Miller is up to 10 saves in as many opportunities this season, which is tied with Kyle Finnegan for third most in the majors behind Robert Suarez (12) and Andres Munoz (11).

MLB Stats

Pitching

YearTeamGGSIP WINS SV K ERA WHIP
2023ATH10633.100383.780001.20000
2024ATH55065.02281042.492310.87692
2025ATH12012.0010231.500000.66667

MILB Stats

Pitching

YearTeamGGSIP WINS SV K ERA WHIP
2021OAK (CPX)326.00091.500001.16667
2022OAK (CPX)112.00050.000000.00000
2022OAK (A+)337.000133.857140.71429
2022OAK (AAA)225.00075.400001.20000
2023OAK (A)223.20044.909091.36364
2023OAK (AA)113.20084.909090.54545
2023OAK (AAA)4412.010230.000000.50000

Recent Games

Last 10 MLB Games

DateTeamOpponentGSWinSaveHoldIPTBF RERHKBBHBPHR
May 1, 2025 ATH @TEX 0 0 1 0 1.0 3 0 0 0 1 0 0 0
Apr 28, 2025 ATH @TEX 0 0 1 0 1.0 4 0 0 0 1 1 0 0
Apr 27, 2025 ATH CHW 0 0 0 0 1.0 3 0 0 0 3 0 0 0
Apr 25, 2025 ATH CHW 0 0 1 0 1.0 5 2 2 2 1 0 0 1
Apr 23, 2025 ATH TEX 0 0 1 0 1.0 4 0 0 1 3 0 0 0
Apr 19, 2025 ATH @MIL 0 0 1 0 1.0 3 0 0 0 2 0 0 0
Apr 16, 2025 ATH @CHW 0 0 1 0 1.0 3 0 0 0 3 0 0 0
Apr 12, 2025 ATH NYM 0 0 1 0 1.0 4 0 0 1 1 0 0 0
Apr 5, 2025 ATH @COL 0 0 1 0 1.0 4 0 0 1 2 0 0 0
Apr 4, 2025 ATH @COL 0 0 1 0 1.0 3 0 0 0 1 1 0 0
Totals 0 0 9 0 10.0 36 2 2 5 18 2 0 1

Last 10 MILB Games

DateLevelTeamOpponentGSWinSave IPTBFRERHKBBHBPHR
Sep 2, 2023 AAA LV SL 1 0 0 3.0 9 0 0 0 4 0 0 0
Aug 29, 2023 AAA LV SL 1 0 0 1.0 5 0 0 0 3 2 0 0
Aug 24, 2023 AAA LV @TAC 1 0 0 3.0 12 0 0 3 5 1 0 0
Aug 20, 2023 A STK SJ 1 0 0 1.2 9 2 2 3 2 1 0 1
Aug 16, 2023 A STK SJ 1 0 0 2.0 6 0 0 0 2 1 0 0
Totals 5 0 0 10.2 41 2 2 6 16 5 0 1

Avg Salary & Roster%

Last 30 days

2026 Position Eligibility Progress

To gain eligibility, a player must have 5 GS or 10 G at a position in the majors, or 20 G at a position in the minors.

Transaction History

Date Transaction Type Team Salary
April 20, 2023 10:06 PM add SLEEPERS $7
October 12, 2023 11:41 AM increase SLEEPERS $9
October 10, 2024 12:21 AM increase SLEEPERS $11
November 15, 2024 12:13 AM increase SLEEPERS $12

Recent Trades for Mason Miller in Old School (5x5)

Date Proposing Team Proposing Team Gives Accepting Team Accepting Team Gives
April 17, 2025 4:01 PM Amity Summer Kings 🦈 Walker Buehler BOS SP R $4 15IL 
Cam Smith HOU 3B/OF R $7 
 RollingWoba Pete Crow-Armstrong CHC OF L $13 
Mason Miller ATH RP R $26 
$20 loan
April 16, 2025 10:15 AM Sandlot Legend Mason Miller ATH RP R $13 
 Rock River Sharks 🦈 Tommy Kahnle DET RP R $6 
Jhoan Duran MIN RP R $14
Seth Halvorsen COL RP R $4 
$11 loan
April 8, 2025 4:16 PM THE ⚾️ GAME !! Evan Carter TEX AAA OF L $5
Marcelo Mayer BOS AAA SS L $3
Kristian Campbell BOS 2B/SS/OF R $22 
 Big Papi memories Emmanuel Clase CLE RP R $22 
Pete Crow-Armstrong CHC OF L $6 
Mason Miller ATH RP R $14 
$12 loan
March 26, 2025 10:51 AM Gil Turn (Andy) Dylan Cease SDP SP R $26 
Reese Olson DET SP R $9 
 There's No Carroll in HR (DC) Bo Bichette TOR SS R $19 
Ranger Suarez PHI AAA SP L $3 
Mason Miller ATH RP R $15 
$5 loan
January 26, 2025 5:43 PM Black Sox Fernando Tatis Jr. SDP OF R $48 
 Heart of Darkness Mason Miller ATH RP R $17 
January 12, 2025 8:43 PM Greene Monster Hunter Mason Miller ATH RP R $14 
 rotoball10 Jarren Duran BOS OF L $16 
January 12, 2025 4:51 PM THE ⚾️ GAME !! Gerrit Cole NYY SP R $42 60IL
Matt Chapman SFG 3B R $6 
 Brain Capers Garrett Crochet BOS SP L $16 
Mason Miller ATH RP R $12 
January 12, 2025 2:15 PM Mississippi Guardians Nathan Eovaldi TEX SP R $12 
Adolis García TEX OF R $9 
Ryan Pepiot TBR SP R $5 
Colson Montgomery CHW CPX SS L $9
 Show Me Your Tatis Lourdes Gurriel Jr. ARI OF R $11
Mason Miller ATH RP R $19 
December 23, 2024 3:53 PM Sandlot Legend Devin Williams NYY RP R $18 
Ryan Walker SFG RP R $3
Jung Hoo Lee SFG OF L $7 
 Bernie Williams Jazz Trio Joey Bart PIT C R $3 
Nico Hoerner CHC 2B/SS R $10 
Mason Miller OAK RP R $13 
Noah Schultz CHW AA SP L $2
December 10, 2024 10:17 PM Mad Shadows Eugenio Suarez ARI 3B R $6 
Tyler Glasnow LAD SP R $19 15IL 
Robert Suarez SDP RP R $17 
Yainer Diaz HOU C/1B R $13 
Calvin Faucher MIA RP R $3
Mason Miller OAK RP R $14 
Bryan Woo SEA SP R $12 
 Southaven Snipers Max Fried ATL SP L $22 
Zac Gallen ARI SP R $28 
Randy Arozarena SEA OF R $22 
Jonatan Clase TOR AAA OF S $6 
Brady House WSN AAA 3B R $3